In her lengthy photo caption, Mazar shared that she, her husband and their two daughters became sick one month ago with an “odd bug” that caused various symptoms: low-grade fever, head-and-body aches, sore throat, a ringing of the ear, and a dry cough. But since “it cleared up quickly,” the 55-year-old assumed they had seasonal colds. “But it felt unusual [and] different...” she noted.

On March 15th, Mazar awoke with the same symptoms — however much worse. “I figured maybe I got the flu or...corona?” she wrote. “I had had cocktails the evening prior, and smoked a few cigarettes. I figured I had jacked my immune system from having a fun night with friends.”

The Goodfellas star said she called a doctor friend and inquired about getting tested for COVID-19, however she didn’t meet testing criteria, because she had not recently traveled internationally or was exposed to someone who tested positive. “I found this kind of a CRAZY criteria for a NY’er, as I had taken the subway, gone to the theater, the grocery store, the pharmacy [and] hair salon,” she wrote. “I was the mom who was trying to prepare the home and get supplies [and] bleach wipes, dry goods [and] extra food.”

On Tuesday, Mazar went to a local clinic, where she was first tested for the flu (it was negative) and then for COVID-19. “I was sent home and told to quarantine myself until I had results, which would take 3-7 days...” she wrote. “Well, today is day 5 and I just found out. I’m hoping I’ve been through the worst of it already. It’s very ‘morphy.’ One day I feel crappy and the next I’m normal. Today my lungs are heavy, but I’m tough.”

Mazar concluded by sharing plans to heal at home, and that while her family has no symptoms, they are “under quarantine” for 14 days.

“I think we all had it possibly already? Who knows,” she wrote. “Anyhow, stay home people! Protect yourselves and your loved ones. Build up your immune systems. Good Luck and God Bless us all.”

For the latest news on the evolving coronavirus outbreak, follow along here. According to experts, people over 60 and those who are immunocompromised continue to be the most at risk. If you have questions, please reference the CDC and WHO’s resource guides.